Cup sleeve



FIG. 1 is a front view of a cup sleeve showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a top view thereof; and,

FIG. 9 is a bottom view thereof.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a cup sleeve, as shown and described. 